Bunch-builder for winding mechanism.



.l. B. DONOVAN. BUNCH BUILDER FOR WINDING MECHANISM.

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BUNCH BUILDER FOR WINDING MECHANISM.

APPLICATION HLED MAY 27, I914- Patented Jan. 29, 1918.

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APPLICATION FILED MAY 27, 1914.

Patented Jan. 29, 1918.

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BUNCH BUILDER FOR wmoma MECHANISML APPLICATION FILED MAYZI. 1914. 1,255,085. Patented Jan.29,1918.

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J. B. DONOVAN.

BUNCH BUILDER FOR WINDINGMECHANISM.

I APPLICATION FILED MAY 27, I914.

Patented Jan. 29; 1918.

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J. B. DONOVAN.

BUNCH BUILDER FOR WINDING MECHANISM.

, APPLICATION FILED MAY 21. 1914. 1,255,085. Patented Jan. 29,1918.

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TIMTED s ra rns en rant o inion JQHN B. DONOVAN, OF NORTH ADAMS, TIIASSACHUSETTS, ASSIGNOR OE ONE-HALF TO JAMES K. LANNING, OIE FALL RIVER, MASSACHUSETTS.

BUN (IE-BUILDER FOR WINDING MECHANISM.

Specification of Letters Patent.

Patented Jan. 29, 1918..

Application filed May 27, 1914. Serial No. 841,360.

upon a yarn receiver by laying successive layers of yarn upon the receiver progres sively and particularly it relates to mechanism for forming a bunch thereon, thereby peculiarly adapting the yarn package for use in feeler looms.

In order that the principle of the invention may be readily understood, I have disclosed certain embodiments thereof in the accompanying drawing, wherein Figure 1 is a side elevation of a so-called Mason builder or winding mechanism having my invention applied thereto;

Fig. 2 is a plan view of a portion of the mechanism shown in Fig. 1 and upon a larger scale;

Fig. 3 is a side elevation of the mechanism shown in Fig. 2; I

Fig. -fl is a vertical cross section upon the line 44 of Fig. 3;

Fig. 5 is a side elevation of a so-called Saco Pcttee building or winding mechanism having my invention applied thereto;

Fig. 6 is a side elevation of a ortion of the apparatus shown in Fig. 5 and on a larger scale;

Fig. 7 is a plan view of the mechanism shown in Fig. (3;

,Fig. 8 is a plan view of a portion of the mechanism shown in Fig. 7, the parts being differently positioned;

Fig. 9 is a transverse section, partially in elevation, of the mechanism shown in Fig. 6;

Figs. 10 and 11 are respectively side and end elevations of a portion of the mechanism shown in Fig. 9; and

Figs. 12 to 16 inclusive represent somewhat diagrammatically several stages in the manufacture of a cop or yarn package wound or spun in accordance with my invention.

any customary or suitable manner.

opposite arm 11 of the said bell crank lever My invention is peculiarly adapted for ready and convenient application to various types of builder or winding mechanisms, and in the accompanying drawings I have chosen to illustrate its application to two well known types thereof. Within the scope of my invention, however, it may be applied to other types of builder or winding mechanlsms. I y

In accordance with my invention, I provide mechanism whereby the location, size and form of the bunch may be readily controlled. embodiment of my invention, I, provide means whereby thelocation of the bunch may be raised or lowered upon the yarn receiver; whereby more or less layers of the yarn or other strand may constitute the bunch, thereby varying the thickness thereof; and whereby longer or shorter layers In accordance with the disclosed may compose the bunch, thus varying the anism having a beam 1, a ring rail 2 having spinning rings 3'thereon, a spindle rail 4L having suitable spindles 5 mounted'thereon, and an arch rail 6 having mounted thereon at suitable intervals depending brackets 7 each having pivoted thereon at 8 a bell crank lever having an arm 9, upon which rides the lower end of the poker arm or.

rod 10 depending from the ring rail 2 in The is connected to the lifting rod 12.

In the usual construction of this type of winding or spinning frame, the lifting rod is directly connected to a chain or flexible element, such as that indicated at ,13 in Figs. 1, Qand 3. In accordance with this form of my invention, I divide or separate the lifting rod into two or. more parts, two being shown in this embodiment of my invention, wherein I have represented the part 12 andthe second part 14.

The builder cam or element is indicated at 15, it being mounted upon a shaft 16 rotated in any suitable or usual manner in the direction of the arrow thereon. The usual builder arm is indicated at 17 as having a roll 18 adapted to contact with the surface of the builder cam, thereby to rock the builder arm in the formation of the cop or other yarn receiver. Herein T have represented said builder arm 17 as pivoted at 18 in a suitable girt 19, the said builder arm having pivoted thereon at 20 a scroll gear 21 having a scroll groove or slot 22 adapted to receive therein a roll 23 upon a slide 2-1 mounted in the upwardly extending portion 25 of the builder arm 17. The chain 13 of the lifting rod is connected to said roll extends into proximity to a suitable abutment or operating member 31 mounted upon the arch rail 6 and adjustable therealong by reason of the slot 32 and bolt 33, thus permitting suitable variations in the extent of movement of the ratchet 26 upon each rocking movement of the builder arm 17. A. suitable holding pawl 3% is mounted upon the upstanding portion 25 of the builder arm to prevent reverse rotation of the ratchet 26. Also mounted upon the stud or boss 27 is a pinion 35 meshing with the scroll'gear 21, whereby upon each rocking movement of the builder arm 17, rotative movement is imparted through the ratchet 26 to the said scroll gear in the direction of the arrow on the latter. Such rotative movement of the scroll gear results in the downward movement of the roll 23, and hence in the movement of the lifting rod toward the left, viewing Figs. 1, 2 and 3, so as to elevate the ring rail.

In Fig. 12, I have represented a yarn receiver at 36, it being here shown" as a usual bobbin. In accordance with my invention, I form thereon a bunch which preferably is composed of the first layers of yarn. In said figure, the bunch in a partially completed condition is indicated at 37. Preferably the bunch is built by commencing the layers at a suitable point above the bottom of the bobbin, as for example, at 38, and winding the layers downward in contradistin'ction to starting said layers at a lower point and winding upwardly. An important feature or characteristic of my invention is its capacity for winding the bunch in this manner. The peculiar advantage of winding the bunch downward is that the lower parts of the subsequently wound layers extending below the bunch can be unwound more readily and with less danger of breakage than if the winding of the layers constituting the bunch be upward. By winding the bunch downwardly, when the last layer of the bunch is laid, the parts are so positioned that the first longer layer exterior to the bunch can be commenced at the then position of the ring rail. Furthermore it is desirable to wind the bunch upon the downward movement of the ring rail,- that is, from the top of the traverse, since the ring rail runs fastest at the top of each traverse and constantly slower until the bottom of the traverse is reached. If, therefore, the bunch were made from the bottom of the traverse instead of from the top, it would be necessary to move the builder rail up and down more times to make the same size of bunch than is the case when the bunch is wound from the top of the traverse.

In the construction shown in Figs. 1 to at, the bunch is wound downwardly; that is to say, the ring rail is retarded on each downward movement so as to form one layer of the bunch. The ring rail is not in the form of invention shown in these figures, retarded upon its upward movement, but reaches its upward limit upon each upward stroke of the ring rail. As herein set forth, in that form of the invention shown in Figs. 5 to 11, the ring rail is retarded upon its upward movement to effect the formation of the bunch, and hence the hunch is wound upwardly. 4

Although an important feature and advantage of my invention is the downward winding of the bunch, it is to be understood that within the scope of my invention the bunch may be wound upwardly.

Referring again to that type of mechanism shown in Figs. 1 to 4, by which 1 wind the bunch as described, I interpose between the members 12 and 14 of the lifting rod the bunch building or forming mechanism, to which my invention more particularly relates.

Therein I have represented the part 14 of the lifting rod as having an upwardly bent end 39, to which is pivotally secured at 40 a lever arm 11, to which at 42 is pivoted the other part 12 of the lifting rod. Also pivoted to said part 14 of the lifting rod at a3 is a short rod or bar 1 1 passing" loosely through a hole 4-5 in the lever arm 11, and at its end having adjusting nuts 16. Also pivoted to the said lever arm 41 at 457 is an arm 18 having adjustably secured thereto, as by means of a slot and set screw 49, 50, an arm 51 having at its outer end a hook 52. Adjustably secured to the under side of the arm 51 by a slot and screw 5a is a bracket 55. The downwardly ex tending end 56 of the arm 48 and said bracket 55 are adjustably connected by a bolt 57. By reason of said bolt 57 and the slots and bolts 49, 50, 53 and 54, the effective length of the hook arm 51 may be varied for the purpose of varying or changing the position of the bunch upon the bobbin, that is, for raising or lowering the position thereof.

Preferably secured to one .of the uprights or samsons 58 of the mechanism is a bracket 59, extending downwardly from which is a supporting arm 60, shown in dotted lines in Figs. 1 and 3. At the lower end thereof is pivotally mounted at 61 a bell crank lever having arms 62, 63. To the outer end of the arm 62 is pivotally secured an upright bar or member 64 held in position against the bracket 59 by a coil spring 65 connected to the arm 63 of the bell crank lever. Fast upon said bar or member .64 is a block or abutment 66, here shown as tapered and preferably notched as indicated at (37 upon its outer upright edge that is adapted to be engaged by the hook 52. The

' arm 63 of the bell crank lever is slotted as indicated at 68 and therein is pivoted at 69 with capacity for adjustment lengthwise of said arm 63, a; bar or member 70 having de tlected portions 71, 72 receiving and supporting a downwardly bent rod 73, the lower end of which is pivoted at 7 1 to a depending lever arm 75 pivoted at 76 to a bracket 77 on the girt 19. The depending lever 75 is adapted to rest against a pin or stop 7 8 upon the face of the scroll gear, the position of said pin at the commencement ofthe winding operation being that shown in Fig. 3. The rotation of the gear permits the lever 75 to move toward the left and consequently through the rod 73, bell crank lever 62, 63 and bar 64 the block 66 is lowered, all as will be more fully hereinafter explained. The rod 73 is adjustably connected in suitable manner to the member 70 and preferably by threading the end 79 of said rod and mounting thereon suitable nuts 80.

Assuming that the winding or spinning action has commenced, if the interposed mechanism described were not provided, then the lifting rod would be moved through its regular'length of stroke. T herefore, upon clockwise motion of the builder arm, the chain 13 and said lifting rod will be moved toward the right, thus lowering the ring rail. Because, however, of the interposition of the block or abutment 66, the hook 52 is held upon engagement therewith, thus preventing further movement to the right of the hook carrying member 51. [his stops or limits the building motion of the lifting rail, but preferably and in accordance with the illustrated embodiment of my invention, it permits slight further longitu dinal movement of the lifting rod member 14 toward the right, the point 47 constituting substantially a pivot about which the arm 41 may slightly move in a clockwise direction. This permit the slight continued movement of the lifting rod memberll and at a certain speed. A slight movement in the same direction of the lifting rod member 12 is permitted, but the speed thereof is less than that of the member 14:, because the point of connection of the member 12 tothe arm ll at 42 is nearer the pivotal point 47 than is the point of connection 40 of the lifting rod member 14. This results in a slowing down action .of the ring rail, which thus has a very slight further movement. The result of the whole operation is, however, such as to limit and determine the point at which the first layer of the bunch terminates, such point being substantially higher than it would have been were not the hook 52 and the cooperating parts present.

The hook 52 rides out of action as the ring rail rises to its upward limit. This allows the abutment or block 66 to rise or fall freely, and at the same time the ring rail winds on a small amount of yarn between the bunch and the upward limit of the yarn traverse, such small amount of winding being of the same character as the main or regular winding throughout the body of the bobbin and is not contracted by the bunch building mechanism.

Upon movementof the lifting rod members 141- and 12in the opposite direction or to the left, viewing Figs. 1, 2 and 3, the member ll swings upon the point 42 as a pivotuntil the lower or free end of said member ll contacts with the set screws lo, whereupon the 'ening the hook the position thereof is raised.

By adjusting longitudinally the wire 73 with respect to its supporting member 70,that is, by moving said support to the right viewing Fig. 3, the bar 6% will be lifted through the bell crank lever 62, 63 carrying with it the block or abutment 66. Therefore the hook 52 in its first movement will engage the block or abutment near its base and hence at a broader part thereof. This ad justment increases the number of layers of the bunch, succeeding layers of the bunch having increasing number of turns, because of the stepped formation of the block or abutment. Conversely, by adjusting the nien'iber 70 tothe left viewing Fig. 3, the block or abutment 66 is lowered, and hence the number of layers of the hunch is decreased. In other words, the adjustment of the member to the right or to the left de mines the number of reciprocations of the ring rail before the block or abutment is out of action and the regular winding occurs.

By adjusting the pivotal point 69 along slot 68 in. lever arm 63 the character of the bunch can be varied. This is due to the fact that such adjustment causes the block to rise higher initially and also because one arm of the bell-crank being shortened, a greater movement of the block will take place on given amount of rotative movement of the scroll gear 21. Both change will affect the form of the bunch. it is apparent that a layer wound on the spindle while the bunch-building mechanism is oper ative consists of two parts, a winding laid on while the hook 52 is not in contact with the block and a contracted winding laid 011 while it is in contact. The elevation of the block determines at what point the winding is contracted and the relative amount of each sort of winding laid on. As the un contracted winding is more open than the contracted, the greater the proportion of the traverse devoted to this winding the greater the length of the layer and the more the preliminary winding is spread. Furthermore, on account or the increased movement of the block due to the. variation. of the length of the lever arm as explained, the gain or relative change in position between successive windings will be varied. Therefore, it the bottom point of the first layer is the same, the bottom point of the next layer is lower on the spindle when the pivot point 69 has been moved along the slot 68 than it would have been had it been allowed to r main at the end of the slot. This evidently causes a spreading of the bunch.

.lt will be understood that as the winding progresses in the formation of the bunch, the scroll gear 21 is turned in a clockwise direction, thus moving the pin (8 in such direction and permitting the rod 73 and the lever arm 75 to follow the same under the influence of the spring This results in a continued downward movement of the block or abutment (36, and hence the further laying of the bunch. lVhen the block or abutment has been sui'liciently lowered so that the hook 512 no longer contacts therewith, thenthe regular winding is proceeded with. l Vhen this winding is being carried on it will be understood that the lever 4&1 is continuously in contact with the abutment nuts 46, the member 12 being, as it were, connected to the member 14 by a triangular yoke. he'tensile connection between the builder motion and the bell-crank 11 is in etl ect a single piece, the arms 48 and 51 and hook 52 being entirely inoperative.

In Figs. .5 to 11 inclusive, 1 have repreeas es sented my invention as applied to the socalled Saco Pettee winding or builder mechanism. In the chosen embodiment of my invention therein illustrated, the bunch is built or wound upwardly in contradistinction to the downward building thereof characteristic of that form of the invention shown in Figs. 1 to 1 inclusive.

Referring again to Figs. 5 to 11 inclusive, the beam is represented at 1, the ring rail at 2, the spinning rings at 3, the spindle rail at t and the spindles at 5. These may be of any suitable character. Pivoted in a bracket 81 attached to and depending from the spindle rail 1 is a lifting lever 82, upon the outer end of which rides the lower end of the poker or lifting arm or rod 88 connected at its upper end to the ring rail 2 in usual manner. The lever 82 is provided with an upwardly extending arm 84 having thereon an are shaped member 85 to which at 56 one end of the builder or let-oil chain 87 is connected. The chain, which corresponds in function to the lifting rod of that form of the invention shown in Figs. 1 to 4, is likewise formed in sections, herein two, one of which is shown at 87 and the other at 88. The member 88 of the chain has a portion 89 thereof tur; ed at right angles so as to encircle a sheave or guide pulley 90 loosely pivoted upon a stud 91 on the builder arm 92 itself pivoted at 93 upon a suitable bracket 9i upon the frame of the mechanism. Fast with the sheave 90 is a worm gear 95 meshing with which is a worm mounted in suitable bearings upon the builder arm 92, the latter having a counterweight 97 and a roll 98 in constant contact with the edge of the builder cam 99 mounted upon a shaft 100 driven in any suitable or usual manner. Fast'upon the shaft of the worm 96 is a suitable ratchet 101 and pivoted co-axially therewith is a pawl carrying arm 102, the pawl 103 of which has an arm or projection 10% adapted upon each upward movement of the builder arm to strike a projection or pin 105 by which the ratchet is turned one or more teeth, thereby letting ofl' a predetermined amount of chain from the sheave 90. In this manner, the chain is constantly let on during the building operation, and therefore the ring rail 2 is incrementally raised in a well known manner.

The member 88 of the builder chain passes about a sheave 106 mounted for rotation in a. bracl et 107 upon the builder or spinning frame head. lnterposed between and connected with the two members 87, 88 of the builder chain is a mechanism which modifies the action of the chain and results in the building of the bunch.

Referring more particularly to Figs. 7 and 8, I have therein represented the portion 89 of the builder chain as having pivin a slot 115 in the rod or bar 111. To the rod or bar 113 intermediate its end is connected the member 87 of the builder chain.

Pivotally secured to the rod or bar 113 intermediate its ends at 116 is a rod or bar 117, the effective outer end 118 whereof is adapted to impinge against the head 119 of a slide member 120 mounted for sliding movement in guides 121, 122. Attached to the slide 120 is a spring 123, an end of which is connected to a pin 124 on the bracket 107. Attached to the'rod or bar 113 is a spring 125, the opposite end thereof being connected to the projection 108 of the link 108. If desired the parts 108, 108 and 110 may all be made in one piece.

Upon the bracket 107 and extending transverscly of the slide 120 is a guide 126, wherein is mounted for sliding movement a block or abutment 127 corresponding in function to the block or abutment 66 in that form of the invention shown in Figs. 1 to 4 inclusive. Passing through an upstanding lip 128 on said block or abutment is a rod 129 having set screws 130 upon the outer threaded end thereof, as shown most clearly in Figs. 7 and 9. Fast upon the said rod is a collar 131 and between the said collar and the lip 128 is a coil spring 132 acting to hold the nuts 130 against the lip. As shown most clearly in Figs. 6 and 7, the rod or bar 117 is provided with an upstanding lip 133 and is adjustably connected by slot 134 and bolt 135 to the main portion 118 of said rod or bar 117. Also connected thereto in a suitable manner is a bracket piece 136 and connecting the said bracket pieces is a bolt 137 provided with a threaded portion having nuts 13S thereon, and a head 138 engaging the bracket piece 136. In this manner the effective length of the rod or bar 117, 118 may be varied. This adjustment corresponds to the adjustment shown in Figs. 2 and 3 for varying the effective length of the hooked member 51, 52, by means of which the position of the bunch is varied.

Fast upon the sheave 90 is an upstanding member or bracket 139 having a free end 140. Pivoted upon said bracket at 141 is a finger 142 connected to the free end 140 of the bracket 139 by coil spring 143. The parts 139, 140, 141, and 142 may, if desired, all be made in one piece. Pivoted upon the builder arm 92 at 144 is a lever 145 having pivoted thereto at 146 the rod 129. Also pivoted upon said lever 145 at 147 is a rod 148, the outer end of which is supported in a guiding bracket 149 secured to andextending upwardly from the builder arm 92. Upon the outer threaded end of said arm 148 is an abutment piece 150 held in adjusted position thereon by nuts 151. The rod 148 is held inposition with respect to the guide arm 141 by a suitable coil spring 152. The finger 142 is provided with a tip 153 held in engagement by the spring 143 withthe abutment piece 150 ai the commencement of the operation. As the building up of the cop or yarn package continues, the chain member 89 is let ofi from the sheave 90 and the finger 142 is intermittently turned in a clockwise direction. The clockwise movement of the finger 142 permits the rod 148 to move to the right (Fig. 9) under the influence of spring 152. This movement rocks the link 145 on pivot 144 and moves the rod 129 to the right in Fig. 9 or downwardly in Fig. 7 thus lowering the block 1 7. The adjustment of the abutment piece 150 is for the purpose of varying the size of the bunch and corresponds to the adjustment of the rod 73 with relation to the initial position of the pin 78, since both determine the initial position of the abutment block and consequently the number of reciprocations before it is withdrawn from action.

It has previously been stated that the rod 129 is connected to the block or abutment 127 by nuts 130, thus permitting a change in initial position of the block or abutment 127. This adjustment is for the purpose of controllingthe number of layers in the 100 bunch and corresponds to the adjustment of the block or abutment 66 in that form of the invention shown in Fig. 3 through the slot 68.

The operation of this device can be clearly 105 understood by reference to Fig. 7. Suppose the parts to be in the position there shown and the chain 87 to be moving to the left to raise the ring rail. The lever 113 is rocked on the pivot 116 which is held stationary because of the support of the piece 118 on 119 which in turn is held by the block 127. The movement of 87 is consequently small rela tive to the movement of 108 and the rail is retarded. Toward the end of the stroke, however, the member 118 will be drawn away from 119 and the frame will be winding turns of the ordinary character, the action being exactly like that of the hook 52 riding out of contact with block 66. The movement of 118 away from 119 will relieve the pressure on block 127 and it may move (downwardly in Fig. 7) under the action of the mechanism 142. 148, 145 and 129 (see Fig. 9) as just described. On the return stroke to the right in Fig. 7 therefore the block 127 will come into action'to retard the rail at a later point and this will continue until the block is entirely withdrawn from action and the regular winding begun. 13o

It will be observed that in both forms of the invention is disclosed a floating tensile connection between the builder motion and the yarn guiding means, said connection being an element which in one case partakes of the form of a chain and in the other of a lifting rod. In both cases, these elements are divided into a plurality of members, preferably two, and interposed between or operatively connected thereto is the building modifying means, the action of which is to form a bunch. In the preferred form of the invention, the bunch is built downwardly, and in the other form thereof it is built upwardly. In each case, the modifying or bunch forming mechanism is of simple construction and may be readily applied to existing types of mechanisms with little change.

Although I have shown but two types of spinning or building frames, it is obvious that my invention may be applied to other types thereof, and that my invention is not restricted to its use in connection with those illustrated.

In Fig. 12, the bobbin or other support is shown as having wound thereon the initial portion of the bunch 37. In Fig. 13, I have represented the completed bunch at 154. In Fig. 14, I have represented a further stage in the building up of the cop, the bunch being overlaid by certain layers 155 of the regular traverse, and in Fig. 15, I have represented the commencement of the formation of the cylindrical portion of the cop. In Fig. 16 I have represented at 157 the complete cop. These several representations are diagrammatic merely.

In the formation of the cop or yarn package in accordance with my invention, the yarn is laid in a series of layers of closely wound coils, and between succeeding layers is a binding layer of more open coils. Bunches have heretofore been formed by re-. tarding the ring rail during its operation at the bottom of the bobbin. This'retarding action also results in an unsatisfactory package of yarn, inasmuch as when the rail stopped for any substantial length of time, it would result in piling the coils of yarn up at one point and thus making a very abrupt and ineffective bunch. Furthermore in such construction the ring rail, after such retardation, has been given a very sudden movement to begin the formation of the regular traverse. This also has resulted in the formation of an unsatisfactory yarn package. In accordance with my invention, and assuming the ring rail to be the movable element and the yarn receiver to be stationary, the ring rail is moved through a series of short traverses, preferably of progressively increasing length to effect the laying of the bunch and immediately thereafter the formation of the regular traverses is commenced. Referring to that form of the invention shown in Figs. 1 to a, the bunch is formed of a series of downwardly wound layers, and between the successive layers are the so-called binding layers which are upwardly wound. The last winding layer of the bunch finds the ring rail positioned so as to lay the yarn at the bottom of the bunch, and immediately thereafter the ring rail is raised so as to lay the loose binding layer, such layer continuing to the top of the bunch or very slightly thereabove, and immediately thereafter the first regular traverse layer is positioned, this continuing preferably to the point shown in Fig. 14,. It will therefore be observed that in accordance with my invention, I cause a series of constant to and fro relative traverse movements between the yarn guiding means and the receiver, the said series including a plurality of short bunch-forming layers and a plurality of regular traverse'layers, the latter immediately succeeding the formation of the former. lhe movement of the ring rail is an easy, gradual one, in which the bunch is laid by traverses of progressively increasing length, the last of which is immediately succeeded by an easy motion of the ring rail in the first of the regular long layers.

In that form of the invention shown in Figs. 5 to 11 inclusive, the operation. is merely reversed in that the Winding is upward. In the claims I refer to the bunch as an initial bunch, though within the scope of the invention, it may be preceded by one or more layers of longer traverse. Preferably however. the bunch is laid upon a bare bobbin or other carrier.

From the foregoing description, it will be evident that in accordance with my invention, I have provided means whereby the bunch may be formed at any desired portion on the bobbin or other support, and whereby the size and form thereof may be varied. Obviously these several features of my invention may be employed singly or together, and my invention is not restricted to their conjunctive use.

Having thus described. one illustrative embodiment of my invention, I desire it to be understood that although specific terms are employed, they are used in a generic and descriptive sense and not for purposes of limitation, the scope of the invention being set forth in the. following claims.

1. In a traverse motion for winding yarn on yarn receivers, a yarn receiver support, yarn guiding means, means to cause a relative to and fro movement between the yarn guiding means and said receiver, and said movement comprising a number of preliminar bunch forming strokes and a succeeding number of body-forming strokes and means to retard said movement during apart of eachof said preliminary strokes.

' 2. In a traverse motion for winding yarn on yarn receivers, a yarn receiver support, yarn guiding means, means to cause a rela tive to and fro movement between the yarn guiding means and said receiver and said movement comprising a number of preliminary, bunch forming strokes and a succeeding number of body-forming strokes and means to retard said movement during a part of each of said preliminary strokes and means to change the commencement point of said retardation.

3. In a traverse motion for Winding yarn on yarn receivers, a yarn receiver support, yarn guiding means, means to cause a relative to and fro movement between the yarn guiding means and said receiver, and said movement comprising a number of preliminary, bunch forming strokes and a succeeding number of body-forming strokes and means to retard said movement during a part of each of said preliminary strokes and means to vary the number of strokes so modified.

4. In a traverse motion for winding yarn on yarn receivers, a yarn receiver support, yarn guiding means, means to cause a relative to and fro movement between the yarn guiding means and said receiver, and said movement comprising a number of preliminary, bunch forming strokes and a succeeding number of body-forming strokes and means to retard said movement during a part of each of said preliminary strokes and means to change the commencement point of said retardation and to vary the number of strokes so modified.

5. In a traverse motion for winding yarn on yarn receivers, a yarn receiver support, yarn guiding means, means to cause a relative to and fro movement between the yarn guiding means and said receiver, and said movement comprising a number of preliminary, bunch forming strokes and a succeeding number of body-forming strokes and means to retard said movement during a part of each of said preliminary strokes while the guiding means is nearer the receiver support.

6. In a traverse motion for winding yarn on yarn receivers, a yarn receiver support, yarn guiding means, means to cause a rela tive to and fro movement between the yarn guiding means and said receiver, and said -movement comprising a number of preliminary, bunch-forming strokes and a succeeding number of body-forming strokes and means to retard said movement during a part of each of said preliminary strokes while the guiding means is nearer the receiver support, and means to change the commencement point of said retardation.

7. In a traverse motion for winding yarn on yarn receivers, a yarn receiver support, yarn guiding means, means to cause a relative to and fro movement between the yarn guiding means and said receiver and said movement comprising a number of preliminary, bunch forming strokes and a succeeding number of body-forming strokes and means to retard said movement during a part of each of said preliminary strokes While the guiding means is nearer the receiver support, and means to vary the number of strokes so modified.

8. In a traverse motion for winding yarn on yarn receivers, a yarn receiver support,

yarn guiding means, means to cause a relative to and fro movement between the yarn guiding means and said receiver and said movement comprising a number of preliminary, bunch forming strokes and a succeeding number of body-forming strokes and means to retard said movement during a part of each of said preliminary strokes while the guiding means is nearer the receiver support and to vary the number of strokes so modified.

9. In a traverse motion for winding yarn on yarn receivers, yarn receiving supports, yarn guiding means, a builder element, a floating tensile, traverse-causing connection between said builder element and said yarn guiding means comprising a linkage to reduce the motion of one end or said connection relatively to the other, means carried by said connection to hold said linkage inoperative and means apart from said connection and controlled by the builder element to operate the linkage.

10. I11 a traverse motion for winding yarn on yarn receivers, yarn guiding supports, yarn guiding means, a builder element, a floating tensile, traverse-causing connection between said builder element and said yarn guiding means comprising a linkage to reduce the motion of one end of said connection relatively to the other, means carried by said connection to hold said linkage inoperative and means apart from said connection and controlled by the builder element to operate the linkage at different periods of the motion of said yarn guiding means.

11. In a traverse motion for winding yarn on yarnv receivers, a yarn receiver support, yarn guiding means, means to cause a relative to and fro movement between the yarn guiding means and said receiver, and traverse modifying means cooperating to form a bunch of wound layers of lengths gradually ".icreasing in downward direction only.

12. In a traverse motion for winding yarn on yarn receivers, a yarn receiver support, yarn guiding means, means to form an initial bunch of short layers of lengths gradually increasing downwardly only, and means to form regular traverse layers immediately succeeding theiormation of the bunch.

13. In a traverse motion for winding yarn on yarn receivers, yarn receiver supports, yarn guiding means, a builder element, a traverse-causing tensile connection between said element and said yarn guiding means, and means comprising a mechanism suspended between the terminals of said connection and a cooperating mechanism apart from said connection and controlled by said builder element to cause the formation of a yarn bunch.

14:. In a traverse motion for winding yarn on yarn receivers, yarn receiver supports, yarn guiding means, a rotatable builder element, a traverse-causing tensile connection between said element and said yarn guiding means, and means conun'ising a mechanism suspended between the terminals of said connection and a cooperating mechanism taking motion directly from said builder element independently on? said connection to cause the formation of the yarn bunch.

15.111 a traverse motion for winding yarn on yarn receivers, yarn receiver supports, yarn guidin means, a rotatable builder element, a divided traverse-causing tensile connection between said element and said yarn gu ding means, bunch forming means comprising a mechanism suspended by the divisions o'l said connection, and a, cotiperating abutment member independent of said connection.

16. In a traverse motion for winding yarn on yarn receivers, yarn receiver supports, yarn guiding means, a rotatable builder element, a traverse-causing tensile. connection suspended between said element and said yarn guiding means, and an abutment member actuated independently of the movement of said connection and positioned to cooperate with said connection and to restrict its movement.

17. In a traverse motion for winding yarn on yarn receivers, yarn receiver supports, yarn guidin means, a rotatable builder element, a traverse-causin tensile connection between said element and said yarn guiding means, and an abutment member actuated independently of the movement of said connection and positioned to engage said connection. and to prevent full movement thereof.

18. In a traverse motion for winding yarn on yarn receivers, yarn receiver supports, yarn guiding means, a rotatable builder element, a traverse-causing tensile connection between said element and said yarn guiding means, and an abutment member actuated independently of the movement of said connection and having a wedge portion positioned to co-act with said connection and to prevent full movement thereof.

19. In a traverse motion for winding yarn on yarn receivers, yarn receiver supports, yarn guiding means, a rotatable builder ele- .ment,v a traverse-causing tensile connection naesgose between said element and said yarn guiding means, and an abutment member actuated imlependently of the movement of said connection and having a stepped portion positioned to engage said connection and to prevent full movement thereof.

20. in a traverse motion for winding yarn on yarn receivers, yarn receiver supports, a yarn guiding means, a rotatable builder element, a floating traverse-causing tensile connection between said element and said yarn guiding means, and an abutment member actuated independently of the movement or" said connection and having a tapered portion positioned to co-act with said connection and to prevent tull movement thereof.

21. In a traverse motion for winding yarn on yarn receivers, yarn receiver supports, a yarn guiding means, a rotatable builder element, a traverse-causing tensile connection between said element and said yarn guiding means, an abutment member actuated independently of the movement of said connection and having a wedge portion positioned to engage said connection to prevent full movement thereof, and means to adjust the abutment to vary the position of its wedge portion.

22. In a traverse motion for winding yarn on yarn receivers, yarn receiver supports, yarn guiding means, a rotatable builder e1emcnt, a traverse-causing tensile connection between said element and said yarn guiding means, bunch forming means comprising a. mechanism interposed between the ends of said tensile connection, an abutment held against moven'ient with said connection, and a lengthwise, adjustable member extending from said interposed mechanism and adapt ed to engage said abutment in the formation of the bunch.

23. In a traverse motion for winding yarn on yarn receivers, yarn receiver supports, a yarn guiding means, a rotatable builder element having a positioning pin, a traversecausing tensile connection between said element and said yarn guiding means, an abutment member, means carried by said connection to coiiperate with said block or abutment member in the formation of the bunch, and means associated with said abutment member to control the same and extending to said positioning pin.

24:. In a traverse motion for winding yarn on yarn receivers, yarn receiver supports, yarn guiding means, a rotatable builder element having a position determining pin, a traverse-causing tensile connection between said element and said yarn guiding means and having a projecting bunch forming member, an abutment member positionable in the path of said projecting bunch forming member, and means to control said abutment member extending from the same to and positionable by said pin.

25. In a traverse motion for Winding yarn on yarn receivers, yarn receiver supports, yarn guiding means, a rotatable yarn on yarn receivers, yarn receiver supports, yarn guiding means, a rotatable builder element, a traverse-causing tensile connection operatively connected to said builder element and said yarn guiding means, bunch forming means including an abutment member upon a fixed part of the mechanism, a hook extending from said connection and adapted to engage said abutment in the formation of a bunch, and means to vary the length of said hook.

27. In a traverse motion for winding yarn on yarn receivers, yarn receiver supports, yarn guiding means, a rotatable builder element, a traverse-causing tensile connection operatively connected to said builder element and said yarn guiding means, bunch forming means including an abutment member upon a fixed part of the mechanism, a hook extending from said connection and adapted to engage said'abutment in the formation of a bunch, and cooperating means to vary the position of the bunch and the size thereof.

28. In a traverse motion for winding yarn on yarn receivers, yarn receiving supports, yarn guiding means, a builder element, a divided, traverse-causing, tensile connection operatively connected to said builder element and said yarn guiding means, a lever suspended between divisions of said tensile connection, and means independent of said connection cooperating with the lever to cause it to give differential motion to said divisions.

29. In a traverse motion for winding yarn on yarn receivers, yarn receiving supports, yarn guiding means, a builder element, a divided, traverse-causing, tensile connection operatively connected to said builder element and said yarn guiding means, a lever suspended between divisions of said tensile connection and means acting through the resistance of a stationary part of the mechanism automatically to check said lever in fixed relation to said part to cause it to give differential motion to said divisions.

30. In a traverse motion for winding yarn on yarn receivers, yarn receiving supports, yarn guiding means, a builder element, a divided, traverse-causing, tensile connection operatively connected to said builder and said yarn guiding means, a lever suspended between divisions of said tensile connection and means acting through the resistance of a stationary part of the mechanism automatically to check said lever at a series of points in fixed relation to said part to cause it to give differential motion to said division.

31. In a traverse motion for winding yarn on yarn receivers, yarn receiving supports, yarn guiding means, a rotatable builder element, a floating, traverse-causing, tensile connection between said element and said yarn guiding means, and an abutment member having a tapered portion positioned to co-act with such connection and to prevent full movement thereof and means engaging said builder element and actuated by the rotation thereof to change the co-acting part of said tapered portion.

32. In a traverse motion for winding yarn on yarn receivers, yarn receiver supports,

yarn guiding means, a rotatable builder imparting a traverse to the yarn guiding means, an operating connection between said element and guiding means and a device independent of said connection, movable into and out from the path thereof under control of the builder element and cooperating therewith to reduce the traverse stroke of the yarn-guiding means.

34. In a traverse motion for Winding yarn on yarn receivers, yarn receiver supports, yarn guiding means, a builder element for imparting a traverse to the yarn guiding means, an operating connection between said element and guiding means, and a tapered abutment independent of said connection and movable by said builder element in the traverse-causing operation thereof across the path of the connection to cooperate with the same to reduce at varying periods the traverse stroke of the yarn guiding means.

35. In a traverse motion for winding yarn on yarn receivers, yarn receiver supports, yarn guiding means, a builder element for imparting a traverse to the yarn guiding means, an operating connection between, said element and guiding means and a device movable into and out from the path thereof and cooperating therewith to reduce the traverse stroke of the yarn guiding means and a train of mechanism connecting the builder element and said device whereby the former directly controls the lat ter.

36. In a traverse motion for winding yarn on yarn receivers, yarn receiver supports, yarn guiding means, a builder element for imparting a traverse to the yarn guiding means, an operating connection between said element and guiding means, a device independent of said. connection and held against movement 'tl'ierewfth, a linkage be tween the builder element and said device whereby movement of the former will move the latter transversely of the path of the connection, said linkage being adjustable, and means to check said connection by engage ment with said device to modify the motion thereof.

37. In a traverse motion for winding yarn means to check said connection by engagement wlth said device to modify the motion thereof, said means being adJuStable to change the time of engagement.

creasing amplitude or length and a sue-V ceeding number of body-forming strokes and means to retard said movement during a part of each of said preliminary strokes.

89. In a traverse motion for winding yarn on yarn receivers, a yarn receiver suppo t, yarn guiding means, the builder 21, the connection 14:, 12 between said builder and guiding means, the linkage L1 carried there by, the member 66 carried by the frame and controlling the movement of said linkage and the means 7375 cooperating with said builder to govern. the member 66 substa11- tially as shown and for the purpose described.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing Witnesses.

JOHN B. DONOVAN.

Witnesses: 4

U. F. BARRINGTON, C. T.. PHELPS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G, 

